CAS OpenIR
A steady-state EMMS drag model for fluidized beds
Tian, Yujie; Lu, Bona; Li, Fei; Wang, Wei1
2020-06-29
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume219Pages:14
Abstract

Mesoscale structures exist inherently in fluidized beds and hence should be taken into account in the constitutive modeling of the drag force. To account for mesoscale effects, previous efforts have been paid on extending the steady-state Energy-Minimization Multi-Scale (EMMS) model to the sub-grid level by introducing acceleration terms into the force balance equations. The EMMS drag models thereof were normally confined into specific flow regimes. In this work, the definition of the heterogeneity index was refined by incorporating the steady-state force balance between the drag and buoyed weight. A simple derivation thereof agrees well with the filtered drag model. Based on such analysis, we proposed a new drag model by solving the steady-state EMMS equations. As a preliminary validation, this new drag was found to allow successful CFD simulation of flow behavior of fluidized beds covering a broad range of flow regimes. (C) 2020 Elsevier Ltd. All rights reserved.

KeywordFluidization Drag Meso-scale Structures Multiphase Flow Simulation
DOI10.1016/j.ces.2020.115616
Language英语
WOS KeywordGas-solid Flows ; Averaged 2-fluid Model ; Cfd Simulation ; Particle Flows ; Multiscale Cfd ; Constitutive Models ; Validation ; Cluster ; Arrays ; Mesoscales
Funding ProjectNational Natural Science Foundation of China[21625605] ; National Natural Science Foundation of China[21821005] ; National Natural Science Foundation of China[91834302]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000530711700011
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40548
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Wei
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Tian, Yujie,Lu, Bona,Li, Fei,et al. A steady-state EMMS drag model for fluidized beds[J]. CHEMICAL ENGINEERING SCIENCE,2020,219:14.
APA Tian, Yujie,Lu, Bona,Li, Fei,&Wang, Wei.(2020).A steady-state EMMS drag model for fluidized beds.CHEMICAL ENGINEERING SCIENCE,219,14.
MLA Tian, Yujie,et al."A steady-state EMMS drag model for fluidized beds".CHEMICAL ENGINEERING SCIENCE 219(2020):14.
Files in This Item:
File Name/Size DocType Version Access License
A steady-state EMMS (2714KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tian, Yujie]'s Articles
[Lu, Bona]'s Articles
[Li, Fei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tian, Yujie]'s Articles
[Lu, Bona]'s Articles
[Li, Fei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tian, Yujie]'s Articles
[Lu, Bona]'s Articles
[Li, Fei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.